Multi-Car in Planck.js
As a bridge between the box car of planckWagon and an actual mountain bike, I want to experiment with a vehicle comprising multiple fixtures. So instead of just a wagon-box with two wheels attached, the vehicle will have several component parts, hopefully looking something like a pickup truck. of course it would be easy to simply render a truck body, but we want it to be part of the physics model, with multiple fixtures on a single body...